AD.2007-07.2.7.2 Polish National Annex to Eurocode 3 (EN 1993-1-1:2005)

To Initiate a EC3-Polish NA Steel Design, use the following procedure.

The Polish National Annex document referred to is National Annex to Standard PN-EN 1993-1-1.

In the Modeling mode, click the Design > Steel tab.
In the Current Code drop-down menu, select EN 1993-1-1:2005.
Click the Define Parameters… button. The Design Parameters dialog opens.
Select the NA parameter in the list box.
Select the option for (6) Poland.
Select the new PLG parameter in the list box.
Note: This parameter is used to select if additional checks per clause 6.3.3 will be performed for designs using the Polish National Annex.
Click the Add button.
This will insert the following commands into the STAAD input file:
```
CODE EN 1993-1-1:2005
NA 6
```

Note: For additional information, please refer to D5.C. European Codes - Steel Design to Eurocode 3 [EN 1993-1-1:2005] and D5.D. European Codes - National Annexes to Eurocode 3 [EN 1993-1-1:2005]

When the Polish National Annex to EC3 is used for design, the output section title is revised to include the Polish National Annex (National Annex to PN-EN 1993-1-1). Additionally, the partial safety factors used are included in the output and are as specified in the Polish NA. The value for C1 and k factors used in the calculation of the elastic critical moment are also included in the report.